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GF next Release Notes
June 2015
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==Installation==
See the [download page http://www.grammaticalframework.org/download/index.html].
==What's new==
Over 788 changes have been pushed to the source repository since the
[release of GF 3.6 release-3.6.html] in June 2014.
===GF compiler and run-time library===
====New features and notable changes====
- GF shell: the commands available in the shell after importing with the
``-retain`` flag are now a superset of the commands available after
importing without ``-retain``.
(Previously commands that require compilation all the way to PMCFG were
not available when the ``-retain`` flag was used.)
- The command line flag ``-s``/``-q`` now silences all warnings.
- GF now supports parallel batch compilation of grammars.
This is activated with the ``-j``
flag. (For the time being, you also need to pass ``+RTS -N -RTS`` to enable
parallelism in the GHC run-time system.)
- Concrete syntax can now be translated to Haskell. The flag
``-output-format=haskell`` translates abstract syntax to Haskell as before.
By also adding ``-haskell=concrete`` you get a Haskell module for each
concrete syntax of the grammar. These contain translations of
linearization types and linearization functions.
By adding ``-haskell=variants`` you get linerization functions that output
all variants.
(You don't get any functions for parsing.)
- [...]
====Other changes and bug fixes====
- Colors are now used to highlight errors and warnings (except on Windows).
- Even though GF works with absolute paths internally, GF now shows paths
relative to the current directory in diagnostic output.
- GF Shell and ``gf -server``: improved responsiveness when large grammars are
loaded (by increasing the GHC RTS idle timeout before full GC from the
default 0.3s to 5s).
====Changes of interest to compiler developers====
- The compiler is now available as a Haskell library. The module ``GF``
serves as a preliminary compiler API. It exports a selection of
types and functions from the compiler. [...]
- Some Haddock documentation improvements to document the compiler API.
- Various refactoring for readability, modularity and efficiency. Removal of
some dead code.
- [...]
===Resource Grammar Library===
- New languages in the Resource Grammar Library: Mongolian
(see the [updated synopsis ../lib/doc/synopsis.html]).
- [...]
===GF Cloud services===
- Minibar and Wide Coverage Translation Demo: speech output is now available
(in browsers that support it).
- The Wide Coverage Translation Demo can now draw syntax trees and show
inflection tables.
- PGF service: add commands ``c-abstrtree`` and ``c-parsetree``.
These are the C runtime variants of the ``absttree`` and ``parsetree``
commands. They work in the same way, but support fewer rendering options.
- PGF Service:
The ``parse``/``translate``/``c-parse``/``c-translate`` commands now
recognize the option ``jsontree=true`` to augment the returned JSON
structure with a field called
``jsontree`` next to the field ``tree``, or ``jsontrees`` next to ``trees``,
containing the the returned syntax tree in JSON format.
- PGF Service: when using ``full=yes`` with the ``complete`` command,
additional information about completions is included in the output, in
particular there is an additional field ``seq`` containing the longest
possible completion.
- PGF service: add command ``c-linearizeAll`` to obtain all variants.
- PGF service: PGFs now expire from the internal cache when they have been
unused for 24 hours, to keep memory use down in long running servers.
- PGF Service: limit the number of parallel calls to the C run-time parse
function to 4 by default. The limit can be changed with the ``-j`` flag.
- [...]
--------------------
[www.grammaticalframework.org http://www.grammaticalframework.org]
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